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Fusión Red is a three-year project, initiated in 2015, to transform Telefónica Spain’s network into an end-to-end converged packet-optical network, using IP and MPLS technologies.

The project was prompted by the explosive growth in video traffic on Telefónica Spain’s networks arising from the popularity of its Fusión quadruple-play offer and, in particular, its Movistar TV service, which has expanded to include Canal+ services and 'catch-up' TV.

To date, Fusión has attracted more than four million pay TV subscribers, and has huge potential for further growth. Telefónica Spain’s fibre-to-the-home network now has more than 15 million lines, the widest coverage in Europe.

Initially, Telefónica Spain will roll out the new metro network in areas of high population density including Barcelona and Catalonia, with the aim to cover half of the country in due course.

Javier Gutierrez, director of network strategy and development, Telefonica Spain, said: ‘The demand for video as part of our Fusión service has moved our data traffic to levels never before seen. We have, however, anticipated this growth and are evolving our network through our Fusión Red project – first for IP, and now at the transport layer. Nokia's optical portfolio is precisely the future-proof, next-generation solution we need to stay ahead of customer demand for many years to come.’

Nokia will provide multiple elements of its recently enhanced optical portfolio, including its scalable packet-OTN switch, the Nokia 1830 PSS-24x, which provides up to 48 terabits of capacity per rack.

Also deployed will be Nokia’s 1830 PSS 500G DWDM muxponder, offering up to 500G of flexible bandwidth for delivery of 100G services and Nokia's contentionless-directionless-colourless, flexible-grid (CDC-F) wavelength routing product, to create programmability at the optical layer.

Sam Bucci, head of Nokia's Optical business, said: ‘We are pleased to play such a critical and central role in the evolution of Telefónica Spain's metro network. Nokia's recently announced optical innovations will lay the groundwork necessary for Telefónica to easily handle the surge in traffic brought on by its highly successful Fusión quad-play service, both now and well into the future.’

Nokia had previously announced that it would supply routing equipment, including its 7950 XRS core router, to Telefonica for the same project.

BT has made an offer to the UK government to voluntarily provide high-speed broadband to 99 per cent all homes and businesses across the country within five years, which would largely be delivered by Openreach.

The government said it received the offer after it committed to introduce a Universal Service Obligation (USO) through regulation to give every home and business in the UK the right to request a high-speed connection of at least 10Mb/s.